1983 Map of Santa Ana

About this map

The Santa Ana Mountains form a central divide in this 1983 survey, separating the dense coastal developments of Orange County from the expanding inland communities of Riverside County. Major military installations, including March Air Force Base and El Toro Marine Corps Air Station, anchor the regional infrastructure alongside institutional landmarks like the California Institution for Men and the Univ of Calif Irvine. The map captures a landscape defined by water management and resource extraction, from the Prado Flood Control Basin to historical industrial sites like the Santiago Coal Mine and Good Hope Mine. Significant terrain features such as Santiago Peak and The Badlands provide contrast to the sprawling residential footprints of Mission Viejo and Riverside. This era reflects a complex network of major transit corridors like the Santa Ana Fwy and Riverside Fwy threading through the Cleveland National Forest.